Crucible holder attachment



FIG. 1 is a top, rear and left side perspective view of a crucibleholder attachment showing my new design;

FIG. 2 is a top, rear and right side perspective view;

FIG. 3 is a top plan view;

FIG. 4 is a left side elevational view;

FIG. 5 is a bottom plan view;

FIG. 6 is a rear elevational view; and

FIG. 7 is a front elevational view thereof.

The ornamental design for a crucible holder attachment, as shown anddescribed.